U.S. federal trademark · Serial No. 78571382 · Reg. No. 3097656
Geophysical Instruments and Equipment Used in Sub-Surface Drilling and Production, Namely, Subsurface Memory Recording Pressure/Temperature Gauges, Formation Testing Pressure/Temperature Gauges, Thermometer Elements, Subsurface Samplers, Mechanical Recording Apparatus in the Nature of Coated Metal Shim Stock for Recording Pressure and Temperature; Optical Scanning Readers, Subsurface Recording Instruments, Subsurface Gauge Clocks Contained in Surface Recording Instrument, and Subsurface Running Cases and Instrument Carrying Cases sold as a unit with the aforementioned goods
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